[Linux, macOS, Windows] Download two prior CodeQL bundles

[angelapwen]

Description

Previously, our runner image only included the most recent release of CodeQL. In order to improve stability of rollout of new CodeQL versions, we are now downloading the most recent two releases.

The change updates the Linux and Windows script variable names to match that of the Mac script, because they are mostly functionally identical. It also adds the same log messages to all scripts and ensures Mac and Windows test parity. It tests that there are two bundles in each of the OS's as well.

This will approximately double the total size and installation time of the existing CodeQL tool.

Related issue:

Check list

• [ ] Related issue / work item is attached
• [x] Tests are written
• [x] Documentation is updated
• [x] Changes are tested and related VM images are successfully generated

[azure-pipelines[bot]]

Azure Pipelines successfully started running 3 pipeline(s).

[henrymercer]

/azp run macos12

[azure-pipelines[bot]]

Commenter does not have sufficient privileges for PR 6884 in repo actions/runner-images

[angelapwen]

/azp run macos12

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[mikhailkoliada]

/azp run /azp run ubuntu2004,macos11,windows2019,ubuntu1804

[azure-pipelines[bot]]

Azure Pipelines successfully started running 3 pipeline(s).